Rosen Law Firm, just googling them, they are on many class action suits against publicly traded companies. In fact, they go after some big companies too, such as Raytheon and JP Morgan Chase, both of which they recently filed. They go after companies large and small with class action lawsuits, and that's how they make their money, even if the class action plantiffs don't prevail.

As can be seen by what you posted, often the lawyers eat up a good amount of the settlement.